may climb
Regular verb: climb - climbed- climbed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may climb
you may climb
she may climb
we may climb
you may climb
they may climb 	I may be climbing
you may be climbing
she may be climbing
we may be climbing
you may be climbing
they may be climbing	I may have climbed
you may have climbed
she may have climbed
we may have climbed
you may have climbed
they may have climbed	I may have been climbing
you may have been climbing
she may have been climbing
we may have been climbing
you may have been climbing
they may have been climbing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not climb
you may not climb
she may not climb
we may not climb
you may not climb
they may not climb 	I may not be climbing
you may not be climbing
she may not be climbing
we may not be climbing
you may not be climbing
they may not be climbing	I may not have climbed
you may not have climbed
she may not have climbed
we may not have climbed
you may not have climbed
they may not have climbed	I may not have been climbing
you may not have been climbing
she may not have been climbing
we may not have been climbing
you may not have been climbing
they may not have been climbing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I climb?
may you climb?
may she climb?
may we climb?
may you climb?
may they climb? 	may I be climbing?
may you be climbing?
may she be climbing?
may we be climbing?
may you be climbing?
may they be climbing? 	may I have climbed?
may you have climbed?
may she have climbed?
may we have climbed?
may you have climbed?
may they have climbed? 	may I have been climbing?
may you have been climbing?
may she have been climbing?
may we have been climbing?
may you have been climbing?
may they have been climbing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not climb?
may you not climb?
may she not climb?
may we not climb?
may you not climb?
may they not climb? 	may I not be climbing?
may you not be climbing?
may she not be climbing?
may we not be climbing?
may you not be climbing?
may they not be climbing? 	may I not have climbed?
may you not have climbed?
may she not have climbed?
may we not have climbed?
may you not have climbed?
may they not have climbed? 	may I not have been climbing?
may you not have been climbing?
may she not have been climbing?
may we not have been climbing?
may you not have been climbing?
may they not have been climbing?